Shaking apparatus for paper-making machines.



J. ROSE.

SHAKING APPARATUS FOR PAPER MAKING MACHINES.

, APPLICATION FILED IUNE H, 1912. 1,186,331.

Patented June 6, 1916.

3 SHEETS-SHEET I.

JFI/Q/Ellifllk J. ROSE.

SHAKING APPARATUS FOR PAPER MAKINGMACHINES.

APPLlCATlON FILED JUNE 11. 1912.

1,1 86,23 1 Patent-0d J 11110 6, 1916.

3 SHEETSSHEET 2.

APPLICATION FIL ED JUNE 11, 1912.

Patnted June 6,' 1916.

3 SHEETS-SHEET 3.

Fig:

ZZZ/B12101: A

UNITED STATES PATENT orrrcn;

JOSEPH ROSE, OF HEIDENAU, NEAR DRESDEN, GERMANY, ASSIGNOR TO CARL HUGO S CH MEIL, OF DRESDEN, GERMANY.

SHAKING APPARATUS FOR PAPER-MAKING MACHINES.

Specification of Letters Patent.

Patented June 6, 1916.

Application filed .Tune 11, 1912. Serial No. 702,976.

To all whom it may concern:

Be it known that I, JOSEPH Rosa, working manager, a subject of the King of Saxony, and resident ofl Bergstrasse 9, Heidenau, near Dresden, Kingdom of Saxony, German Empire, have invented a new and useful Improvement Relating to Shaking Apparatus for Paper-Making Machines, of which the following is a specification. J

In paper making machines a certain portion, namely the so-called vibrating section is reciprocatedhorizontally by laterally applied forces, for the purposes of attalning proper felting of the fibers of the stuff in the paper. The object of this vibrating motion is to prevent the fibers from lying almost entirely lengthwise of the travel of the machine and thereby giving rise to great differences between the longitudinal and tranS-' verse strength and extensibility of the paper. In machines as hitherto known these lateral forces are always applied in the neighborhood of the breast roll, that is to say where the pulp runs on to the wire former. The consequence is that the lateral motion of the wire former and of the rollers and bars that carry the same is always greatest in the neighborhood of the breast roll and decreases uniformly towardthe end of the vibrating section up to the: fulcrum of the' vibrating bars. Naturally this lateral motion at the breast roll can only be pushed to'a given limit, as the layer of ulp would be disturbed by too violent sha ing and the strain on the wire former would also be too severe. A limit being therefore set to lateral reciprocation, it follows that with a long stretch of wire former to be vibrated, the vibration is only slight even midway, and consequently can no longer act sufliciently on the felting of the fibers.

The present invention aims to overcome this drawback by imparting to the wire former at two or more sections or portions of its length an equal amplitude of vibra-' 1, 2, 3 illustrate diagrammatically three different constructions of apparatus embodying the invention, and Figs. 1, 1, and 1 before.

at the .commencement of the first part have a a greater or smaller amplitude of vibration than at the end of this part, the bars vibrating as hitherto in the second part, but

the amplitude of vibration of the bars at the commencement of the second part must be as great as at the end of the first. 2. The

bars are divided into more'than two parts, and these are vibrated so that the part nearest the breast roll is vibrated as mentioned under 1, and the, succeeding parts, except the last, parallel to each other, or like the first parts, care only beingtaken that the stroke or extent of vibration is equal atthe points where 'two'parts adjoin each other. Other combinations are of course possible in regard 'to the reciprocation of the wire former, the dividing u of the bars into parts being retained. -15 this way the advantage is attained that the vibration acts sufiiciently intensely with long stretches of wire former, withoutn'ecessity for making the lateral vibration of eater extent than Consequently e cient felting can be attained and all parts of the vibrating section of the machine can-be regulated.

According to an improved form of consuitably mounted at one or both ends in such 4 manner that'the driving device which acts in the middle or at one or more other points,

or at the commencement and another point .of theelastic register bars, bends the latter and consequently imparts vibrations of equal extent or vibrations of different extent to them at diflerent parts of their length. If the driving device acts only in the middle for example the vibrations would increase from m'l at one end of the bar toward the middle and decrease again to M7 from the middle to the other end. It will be understood that the register or carrier rollers are supposed. as mounted in the known way with the wire former running over them, so that in the vibration of the said bars the register rollers move with them, and the wire former partakes of the vibrating movement of these rollers.

In the construction according to Fig. 1 the bars a a while still divided up into two parts I and II, are operated in such a way that the part or section I on the breast roll side has different amplitudes of vibration at its two ends. At the ends of the bars a nearest the breast roll the amplitude of vibration d is smaller than the amplitude of vibration e at the ends nearest the part II, while the part II vibrates angularly about the points 6 as in the construction according to Fig. 1. Of course the ends of the bars a of part I nearest the breast roll may if desired have a somewhat greater amplitude of vibration than their ends nearest the part II. In all cases above mentioned the stroke of extent of vibration at the points of. division between parts I and II must of course be exactly equal. a

In the construction shown in Fig. 2 the register bars a are elastic and. their ends are slidably guided, for example by being inserted between two checks 9 connected by a pin f. The driving device for the register bars acts at h at the middle of the bars, so that the latter assume the position shown in dash-dotted lines.

In the construction shown in Fig. 3 two driving devices act at two points it and 2' and the register bars assume the position shown in the dash dotted lines. 70 is the paper machine sieve which is guided in theusual manner from the breast roller'l over the register rollers m, the sucking devices n, and then between the couch rollers 0 and thereafter back over the guiding rollers'to the breast roller Z. The register rollers-m are mounted on the register bars a a formed in accordance with the invention of two parts I, II, of which the part II is mounted at the end near a, directed toward the couch rollers 0 (Fig. 1 in such a manner as to be able to oscillate sidewise. The part I is connected at 37 (Fig. 1 with the part II, and to the connecting piece 79, a swinging lever g is attached similar to that at the other end of the part I, lying near the breast roller. The top free end of each of these levers g is connected, as will also be seen by the side view shown in Fig. 1, with a well lmown sliding crank device-r, s, and

both these devices are in common moved in a well known manner, so that the bars a of the part I are shifted parallel to each other, whereas the bars a of the part II are swung around their trunnions b in such a manner that their ends connected with the part I, receive the same amplitude of vibration as is imparted to the part I moved in a parallel manner.

In Fig. 1", the paper machine sieve 1c is only partly shown, namely, where it passes over the register bars. According to the diameters of the crank disks chosen for producing the vibration of the bars, the part of the vibrating section nearer the breast roll can reciprocate at the breast roll with a greater or with a smaller vibration than the part nearer the suction apparatus, and consequently the different parts of the vibrated section of wire former can receive diflerent degrees of vibration.

What I claim is:

1. A shaking apparatus for paper making machines comprising a wire former and means for imparting to that portion of the former first receiving the pulp vibrations gradually increasing in amplitude and to another portion of the wire former vibrations gradually decreasing in amplitude.

2. A shaking apparatus for paper making machines comprising a wire former, means for imparting to that portion of the former first receiving the pulp vibrations gradually increasing in amplitude, to a subsequent portion of the former vibrations of equal amplitude throughout the portion and to a subsequent portion. vibrations gradually de creasing in amplitude.

In testimony that I claim the foregoing as my invention, I have signed my name in presence of two witnesses, this twenty-ninth day of May 1912.

JOSEPH ROSE.

Witnesses:

PAUL Anus, CLARE SIMON. 

